<template>
 <div class="wrap">
   <div id="myEchart" :style="{height:'77.5vh'}" ></div>
 </div>
</template>

<script>
import * as echarts from 'echarts'
import $ from 'jquery'
export default {
  data () {
    return {

    }
  },
  mounted () {
    this.echArtInit()
  },
  methods: {
    echArtInit () {
      var ROOT_PATH =
  'https://cdn.jsdelivr.net/gh/apache/echarts-website@asf-site/examples'

      var chartDom = document.getElementById('myEchart')
      var myChart = echarts.init(chartDom)
      var option

      myChart.showLoading()
      $.get(ROOT_PATH + '/data/asset/geo/HK.json', function (geoJson) {
        myChart.hideLoading()
        echarts.registerMap('HK', geoJson)
        myChart.setOption(
          (option = {
            title: {
              text: 'Population Density of Hong Kong （2011）',
              subtext: 'Data from Wikipedia',
              sublink:
          'http://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF%E8%A1%8C%E6%94%BF%E5%8D%80%E5%8A%83#cite_note-12'
            },
            tooltip: {
              trigger: 'item',
              formatter: '{b}<br/>{c} (p / km2)'
            },
            toolbox: {
              show: true,
              orient: 'vertical',
              left: 'right',
              top: 'center',
              feature: {
                dataView: { readOnly: false },
                restore: {},
                saveAsImage: {}
              }
            },
            visualMap: {
              min: 800,
              max: 50000,
              text: ['High', 'Low'],
              realtime: false,
              calculable: true,
              inRange: {
                color: ['lightskyblue', 'yellow', 'orangered']
              }
            },
            series: [
              {
                name: '香港18区人口密度',
                type: 'map',
                map: 'HK',
                label: {
                  show: true
                },
                data: [
                  { name: '中西区', value: 20057.34 },
                  { name: '湾仔', value: 15477.48 },
                  { name: '东区', value: 31686.1 },
                  { name: '南区', value: 6992.6 },
                  { name: '油尖旺', value: 44045.49 },
                  { name: '深水埗', value: 40689.64 },
                  { name: '九龙城', value: 37659.78 },
                  { name: '黄大仙', value: 45180.97 },
                  { name: '观塘', value: 55204.26 },
                  { name: '葵青', value: 21900.9 },
                  { name: '荃湾', value: 4918.26 },
                  { name: '屯门', value: 5881.84 },
                  { name: '元朗', value: 4178.01 },
                  { name: '北区', value: 2227.92 },
                  { name: '大埔', value: 2180.98 },
                  { name: '沙田', value: 9172.94 },
                  { name: '西贡', value: 3368 },
                  { name: '离岛', value: 806.98 }
                ],
                // 自定义名称映射
                nameMap: {
                  'Central and Western': '中西区',
                  Eastern: '东区',
                  Islands: '离岛',
                  'Kowloon City': '九龙城',
                  'Kwai Tsing': '葵青',
                  'Kwun Tong': '观塘',
                  North: '北区',
                  'Sai Kung': '西贡',
                  'Sha Tin': '沙田',
                  'Sham Shui Po': '深水埗',
                  Southern: '南区',
                  'Tai Po': '大埔',
                  'Tsuen Wan': '荃湾',
                  'Tuen Mun': '屯门',
                  'Wan Chai': '湾仔',
                  'Wong Tai Sin': '黄大仙',
                  'Yau Tsim Mong': '油尖旺',
                  'Yuen Long': '元朗'
                }
              }
            ]
          })
        )
      })

      option && myChart.setOption(option)
    }
  }
}
</script>

<style lang="scss" scoped>
.wrap{
  display: flex;
  justify-content: center;
  #myEchart{
    width: 480px;
  }
}

</style>
